content: /**
   * Copyright (c) 2016-present, RxJava Contributors.
   *
   * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in
   * compliance with the License. You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software distributed under the License is
   * distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See
   * the License for the specific language governing permissions and limitations under the License.
   */
  
  package io.reactivex.flowable.internal.operators;
  
  import java.util.concurrent.Callable;
  
  import org.reactivestreams.Subscriber;
  
  import io.reactivex.common.exceptions.*;
  import io.reactivex.common.functions.Function;
  import io.reactivex.common.internal.functions.ObjectHelper;
  import io.reactivex.flowable.Flowable;
  import io.reactivex.flowable.internal.subscribers.SinglePostCompleteSubscriber;
  
  public final class FlowableMapNotification<T, R> extends AbstractFlowableWithUpstream<T, R> {
  
      final Function<? super T, ? extends R> onNextMapper;
      final Function<? super Throwable, ? extends R> onErrorMapper;
      final Callable<? extends R> onCompleteSupplier;
  
      public FlowableMapNotification(
              Flowable<T> source,
              Function<? super T, ? extends R> onNextMapper,
              Function<? super Throwable, ? extends R> onErrorMapper,
              Callable<? extends R> onCompleteSupplier) {
          super(source);
          this.onNextMapper = onNextMapper;
          this.onErrorMapper = onErrorMapper;
          this.onCompleteSupplier = onCompleteSupplier;
      }
  
      @Override
      protected void subscribeActual(Subscriber<? super R> s) {
          source.subscribe(new MapNotificationSubscriber<T, R>(s, onNextMapper, onErrorMapper, onCompleteSupplier));
      }
  
      static final class MapNotificationSubscriber<T, R>
      extends SinglePostCompleteSubscriber<T, R> {
  
          private static final long serialVersionUID = 2757120512858778108L;
          final Function<? super T, ? extends R> onNextMapper;
          final Function<? super Throwable, ? extends R> onErrorMapper;
          final Callable<? extends R> onCompleteSupplier;
  
          MapNotificationSubscriber(Subscriber<? super R> actual,
                  Function<? super T, ? extends R> onNextMapper,
                  Function<? super Throwable, ? extends R> onErrorMapper,
                  Callable<? extends R> onCompleteSupplier) {
              super(actual);
              this.onNextMapper = onNextMapper;
              this.onErrorMapper = onErrorMapper;
              this.onCompleteSupplier = onCompleteSupplier;
          }
  
          @Override
          public void onNext(T t) {
              R p;
  
              try {
                  p = ObjectHelper.requireNonNull(onNextMapper.apply(t), "The onNext publisher returned is null");
              } catch (Throwable e) {
                  Exceptions.throwIfFatal(e);
                  actual.onError(e);
                  return;
              }
  
              produced++;
              actual.onNext(p);
          }
  
          @Override
          public void onError(Throwable t) {
              R p;
  
              try {
                  p = ObjectHelper.requireNonNull(onErrorMapper.apply(t), "The onError publisher returned is null");
              } catch (Throwable e) {
                  Exceptions.throwIfFatal(e);
                  actual.onError(new CompositeException(t, e));
                  return;
              }
  
              complete(p);
          }
  
          @Override
          public void onComplete() {
              R p;
  
              try {
                  p = ObjectHelper.requireNonNull(onCompleteSupplier.call(), "The onComplete publisher returned is null");
              } catch (Throwable e) {
                  Exceptions.throwIfFatal(e);
                  actual.onError(e);
                  return;
              }
  
              complete(p);
          }
      }
  }
  